cmd/internal/obj/ppc64: fix usage of CR bit arguments

CR bits and CR fields should be treated separately. Some instructions
modify an entire CR, a CR field, or a single CR bit.

Add a new argument class for CR bits, and teach the assembler the
recognize them as names like CR0LT or CR2SO, and update the CR
bit logic instructions to use them. They will no longer accept
register field (CRn) type arguments.

Fixes #46422
Change-Id: Iaba127d88abada0c2a49b8d3b07a976180565ae4
Reviewed-on: https://go-review.googlesource.com/c/go/+/357774
Run-TryBot: Paul Murphy <murp@ibm.com>
Trust: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
8 files changed
tree: 45ac163184802908027e5a13066eb818b6a01110
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. codereview.cfg
  12. CONTRIBUTING.md
  13. CONTRIBUTORS
  14. LICENSE
  15. PATENTS
  16. README.md
  17. SECURITY.md
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